Basic Shell Commands in Termux and System Info Tools

Let us begin with some commands and shortcuts, which help to move around the terminal. The commands are almost universal in most Linux or Unix flavors, by the way.

Bash Commands

• whoami prints current user
• pwd prints working directory
• cd [nameofdirectory] changes working directory
• mkdir [nameofdirectory] creates directory in current working directory
• uname -a
• ls
• top shows running processes
• clear clears screen
• !! runs previous command, often used like sudo !!
• q usually quits the app
• Ctrl+C terminates the running process, Ctrl+D exits shell
• Ctrl+Shift+C, Ctrl+Shift+V, Copy and Paste

Moving Through the Command Line

• Ctrl+A return to the beginning of the line, Ctrl+E to the end of the line
• move to beginning of the word Alt+B, to the end Alt+F
• delete previous word Alt+Backspace
• Alt Autocomplete

How to Create Batch Scripts?

You can easily create scripts to run multiple commands in a succession in Linux. The batch script can be of any file extension, we will use the standard .sh extension for clarity. Steps to create the batch:

1. Create file in the target directory touch bat.sh
2. Edit the file with text editor, f.i. vi bat.sh
3. In the first line, add "SheBang" command, identifying the file as a script and executing it as Bash shell: #!/bin/bash
4. Add your consecutive commands, in separate lines.
5. Make the file executable by changing its properties chmod +x bat.sh
6. Run the file: ./bat.sh

System Info Tools

You can install all tools with apt install [name] -y. You may try some basic options or read the manual online or by the CLI command man [name].

htop

• Run htop -h to get help, htop -C for monochromatic version

inxi

• Overall system info inxi or inxi -a, inxi -b for more detailed information
• Info about graphics inxi -G, memory inxi -m
• Info about soundsystem inxi -A
• High level overview inxi -F

Run the commands with sudo to get the overview with serial numbers.

• what to install next

Usefull Packages